Answer to Question #183290 in Organic Chemistry for Deidra

Question

calculate the oxidation number of chromium in an unknown salt if the electrolysis of the salt produce 9.71 of chromium at the cathode after a current of 10A was passed through the cell for 1.5hours(cr=52g/mol

Answer 1

Molar Mass of Cr = 52

9.71/52 = 0.186730

= 10 × 1.5 × 0.18673

= 2.80